x402 Random Number Seller

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* Probe x402 screenshot APIs to find one that returns proper x402 402 responses.\n */\n\nconst apis = [\n {\n name: \"Visual API\",\n url: \"https://x402.visual.cx/screenshot\",\n method: \"POST\",\n body: JSON.stringify({ url: \"https://example.com\" }),\n headers: { \"Content-Type\": \"application/json\" },\n },\n {\n name: \"Visual API (GET with query)\",\n url: \"https://x402.visual.cx/screenshot?url=https://example.com\",\n method: \"GET\",\n body: undefined,\n headers: {},\n },\n {\n name: \"OpSpawn Screenshot API\",\n url: \"https://opspawn-x402-screenshot.onrender.com/screenshot\",\n method: \"POST\",\n body: JSON.stringify({ url: \"https://example.com\" }),\n headers: { \"Content-Type\": \"application/json\" },\n },\n {\n name: \"Hyperbrowser x402\",\n url: \"https://x402.hyperbrowser.ai/session/create\",\n method: \"POST\",\n body: JSON.stringify({ duration: 5 }),\n headers: { \"Content-Type\": \"application/json\" },\n },\n];\n\nfor (const api of apis) {\n console.log(`\\n${\"=\".repeat(60)}`);\n console.log(`Testing: ${api.name}`);\n console.log(`URL: ${api.url}`);\n console.log(`${\"=\".repeat(60)}`);\n\n try {\n const response = await fetch(api.url, {\n method: api.method,\n headers: api.headers,\n body: api.body,\n });\n\n console.log(`Status: ${response.status}`);\n console.log(`Content-Type: ${response.headers.get(\"content-type\")}`);\n\n // Check for x402 headers\n const paymentRequired = response.headers.get(\"PAYMENT-REQUIRED\");\n const xPayment = response.headers.get(\"X-PAYMENT\");\n const wwwAuth = response.headers.get(\"WWW-Authenticate\");\n if (paymentRequired) console.log(`PAYMENT-REQUIRED: ${paymentRequired.substring(0, 200)}...`);\n if (xPayment) console.log(`X-PAYMENT header present`);\n if (wwwAuth) console.log(`WWW-Authenticate: ${wwwAuth.substring(0, 200)}...`);\n\n const text = await response.text();\n console.log(`Body (first 500 chars): ${text.substring(0, 500)}`);\n\n if (response.status === 402) {\n try {\n const json = JSON.parse(text);\n console.log(`\\nx402Version: ${json.x402Version}`);\n console.log(`Has accepts: ${\"accepts\" in json}`);\n if (json.accepts) {\n console.log(`Accepts[0]: ${JSON.stringify(json.accepts[0], null, 2)}`);\n }\n } catch {\n console.log(\"Body is not JSON\");\n }\n }\n } catch (err: any) {\n console.log(`Error: ${err.message}`);\n }\n}\n","createdAt",["D",1775336586481],"branchVersion","branchId","df2e7966-1a41-11f1-b341-42dde27851f2","id","df2e18a4-1a41-11f1-b341-42dde27851f2","x402-playground",["D",1772900564463],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Playing with internet-native payment 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@jsxImportSource npm:hono@4/jsx */\nimport { Hono } from \"npm:hono@4\";\nimport { paymentMiddleware, x402ResourceServer } from \"npm:@x402/hono\";\nimport { ExactEvmScheme } from \"npm:@x402/evm/exact/server\";\nimport { HTTPFacilitatorClient } from \"npm:@x402/core/server\";\nimport { getAddress } from \"./lib/x402.ts\";\n\n// --- Config ---\nconst network = \"eip155:8453\"; // Base mainnet\n\n// --- x402 seller middleware ---\nconst facilitator = new HTTPFacilitatorClient({\n url: \"https://facilitator.xpay.sh\",\n});\nconst resourceServer = new x402ResourceServer(facilitator)\n .register(network, new ExactEvmScheme());\n\nconst app = new Hono();\napp.onError((err) => Promise.reject(err));\n\n// Receiving wallet (always wallet 1)\nconst payTo = getAddress(\"1\");\n\napp.use(\n paymentMiddleware(\n {\n \"GET /api/random\": {\n accepts: {\n scheme: \"exact\",\n price: \"$0.001\",\n network,\n payTo,\n },\n description: \"A premium random number\",\n mimeType: \"application/json\",\n },\n },\n resourceServer,\n ),\n);\n\n// --- Homepage ---\napp.get(\"/\", (c) => {\n const endpoint = new URL(\"/api/random\", c.req.url).href;\n\n return c.html(\n \n \n x402 Random Number Seller\n

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